Window



Oct. 31, 1939. P. J. FLAMM NG 2,177.882

WINDOW Filed April 17, 1953 12 INVENTOR.

P6562" JF/ammang BY ATTORNEYS Patented Oct 31, 1939 PATENT orrrcs WINDOW Peter J. Flammang, Beech Grove, Ind.

Application April 17,

.3 Claims.

The object of'my invention is to produce a vertically slidab-le window sash comprising one section which may be swung about an axis which is parallel with the plane .of the movement of the sash, together with mechanism by which, through the medium of a single operating shaft, the sash may be vertically, adjusted when and only when the swinging element is in the sash plane, and the swinging element may be angularly adjusted when and only when the sash is at one extreme of its vertical movement.

The mechanism is primarily designed for auto mobile doors where the sash comprises a glass fixed relative to the sash plane and a coordinated glass angularly adjustable relative to the sash planeand wherein angular adjustability of the last-mentioned glass is desiredwhen the sash is at its upper, compartment-closing, extreme.

The acoompanying'drawing illustrates my invention:

Fig. 1 is a side elevation of my mechanism together with fragmentary portions'of cooperating door jams and window sash;

Fig. 2 is a fragmentary horizontal section, on a larger scale, of parts shown in Fig. 1;

Fig. 3 is a section on'line 33 of Fig. 1; and

Fig. 4 is an elevation, in fragmentary vertical section, of the parts shown in Fig. 2.

In the drawing It, I6 indicate two door jams between which is secured,"to the inside of the plane of the vertically sliding sash S, a base bar I i which may be conveniently. formed of angleor channel iron.

Mounted upon the top of bar I I is a bracket I2 in which is journalled a horizontal operating shaft It, the inner endof which is provided with a suitable crank (not shown) by means of which it may be rotated.

Within the thickness of the door, shaft I3 is provided with a quick pitch screw it upon which is threaded a sleeve I the outer end of which carries gear i6. Shaft'l-i, at its outer end, carries a flange H which limits axial movement of. the sleeve I5 in that direction and carries a collar it which limits axial movement of sleeve I5 in the opposite direction. Shaft I3 also carries a collar l9 adjacent collar I8 and between these two collars lies the inside finish plate Zil of the door.

Journalled inbracket I2 parallel with shaft His a shaft 25 provided with a worm 25 and a pinion 22 capable of meshing with gear I6.

I Meshing with worm 26 is a worm wheel 28 car- .ried by a shaft 29 which lies at a right angle to 1933, Serial No. 666,460

shafts I3 and 25 and is journalled in brackets 30, 30 secured to thetop side of bar II.

Shaft 29near each end carries a sprocket wheel 3| over each of which is an endless belt comprising a section of links .32, adapted to mesh" 5 with the sprocket wheel, and a. section 33 of steel tape which is passed under and around an idler 34 carried by a vertically movable yoke 35 mounted in a bracket 36 secured to the adjacent jam Ill and normally urged downwardly, so as.:-.- to maintain proper tension in the endless belt 3233, by a spring 37. Each of the endless belts 32-33 carries a fork 39 provided with a slot 65. One of these forks- 39 receives the lower wall II of a box-like metal hanger 42 attached to the under edge of the lower rail of the sash S, as shown in Fig. 3.

Also secured to the lower edge of the lower rail ofv sash S is a box-like hanger 45 the lower wall 44 of which is received in the other fork 39.;

Journalled in suitable bearings 46 in hanger 45 is a shaft 41 parallel with shafts I3 and and this shaft carries the worm 45 and the pinion 49 Which may mesh with gear I6. Also journalled inbearings in. hanger 45 and in the lower 25 rail of sash S is a vertical shaft 50 provided with a worm wheel 5I which meshes with worm 48. The lower end of shaft 50 carries an eccentric pin 52 which is projected into a slot 53 formed in a slide 54 which is slidably mounted in hanger30 45 and provided with an upright post 55 having a horizontal upper end 55 which isprojected into one end of a safety latch 51 slidably mounted in. the hanger and lying alongside of pinion'49.

Secured to hanger 45 is a bracket 60 provided with an inwardly extending horizontal pin BI which may traverse an inclined cam slot 62 carried by a laterally slidable safety latch '63 which is arranged alongside the outer face of pinion 21, said latch being slotted at 64 to straddle shaft 25 and slotted at 65130 straddle a pin 65 carried by bracket 61 secured to the top of bar I I.

Near its inner end sleeve I5 is radially bored to form a pocket for a latch ball Ill yieldingly urged inwardly by spring II attached to sleeve I5 and adapted to lie in either one of two circumferential grooves 12 and I2 formed in shaft I3 at the inner end of threads I4.

The sash S is provided with a fixed glass section G and a complementing swinging glass section G which section at its lower edge is mounted in holder 5|! attached to the upper end of shaft 50.

The upper edge of this swinging glass section will be provided with a fulcrum pin bracket of well known form (not shown) in alignment with shaft 56 and journalled in the upper rail of the sash S.

The parts are shown in the positions which they occupy when the sash S is in its upper extreme and glass G lies in the plane of glass G and sleeve i5 is at an intermediate transit position between the two pinions 21 and 49 and by turning shaft l3 counter-clockwise gear IE will be shifted axially into full mesh with pinion 49 and out of mesh with gear 21 and ball Ill will drop into groove 72'. Thereupon the shaft 3 may be rotated in a counter-clockwise direction thus rotating pinion 49 and worm 48 in a clockwise direction so as to rotate shaft 50 in a clockwise direction (Fig. 2) thereby swinging one edge of glass G outwardly and setting the glass G at an angle to the plane of glass G. Counterclockwise movement of shaft l3, by reason of screw 14, tends to hold gear H5 in its outermost position on shaft l3. As the shaft 56 is rotated in a clockwise direction its pin 52, through the medium of slide 54, post 55, and finger 56 shifts the safety latch El to the left (Fig. 2) so as to overlie gear It. Within the limits of the oscillatory movement of shaft 59 shaft I3 may be moved in either direction to swing glass G from or to closed position, i. e., into parallelism with glass G, ball it, as well as latch 5'1 preventing axial movement of gear it, with its sleeve 55, on shaft l3 during clockwise movements of said shaft. As glass G approaches parallelism with glass G latch 51 is fully retracted from gear 16 and when the glass G is brought to its seat furnishes sufficient resistance to permit screw M to cause gear 56 to be retracted toward and into mesh with pinion 2'! and out of mesh with pinion 49.

When gear l6 firstmeshes with pinion 2'! glass G will be in parallelism with glass G, and the axial shifting of gear I6 takes place without rotation and ball 76 is shifted from groove 12 into groove 72. When sleeve l5 abuts collar l8 and gear l6 fully meshes with pinion 21, clockwise movement of shaft 13 rotates shaft counterclockwise.

Continued counter-clockwise movement of pinion 2'! operates through worm 26, worm wheel 28, shaft 29, sprockets Bi and the endless belts 32--33 to draw the sash S downwardly, pinion 9 moving downwardly with the sash. The initially downward movement of the sash drives pin. 69 downwardly through the cam slot 62 and shifts the safety latch 63 to a position to overlap the outer face of gear it, said latch being yieldingly held at either extreme of its position by a spring latch ball 19 of well known construction mounted in bracket 61.

In this position of the parts the shaft I3 may be rotated either clockwise or counter-clockwise to lower or raise the sash S. As sash S approaches its upper limits, due to counter-clockwise movement of shaft 53, pin 68 will again traverse cam slot 62 in the opposite direction so as to retract latch 63 from its overlap on gear I6 and, as the sash reaches its upper limit it offers sufficient resistance to permit screw M to shift gear 16 from its mesh with pinion 21 and into mesh with pinion t9 whereupon the operation may be repeated.

It will be noted that, while manipulation of shaft 13 may produce either vertical adjustment of the sash as a whole or angular adjustment of the swinging glass G, there can be no vertical adjustment of the sash until the glass G is in parallelism with glass G, and there can be no angular movement of glass G except when the sash S is in its upper limit.

As a precaution against displacement of pinion 49, due to rattling or otherwise, during those periods when the sash S is in a lowered position I provide an automatic friction brake comprising a friction shoe 80 carried by a stem 8| vertically slidable in a bracket 82 secured to the underside of hanger 45. The shoe 80 is yieldingly urged upwardly by a spring 83 which is held against angular displacement by a pin 84 sliding in a slot 85 in bracket 82. The stem Bl is provided at its lower end with a laterally projecting finger 86 which may be brought into contact with a finger 8'! attached to bar I I.

When the sash S nears the limit of its upward movement finger 86 is brought up under finger 81 and stem BI is held against further upward movement so that the final upward movement of the sash retracts shoe 80 from frictional contact with pinion 49. Upon initial downward movement of sash S from its upper limit bracket 82 moves downwardly and spring 83 moves shoe 80 upwardly into contact with pinion 49 and remains in that frictional contact while the sash S is in all of its lower positions.

I claim as my invention:

1. The combination with a sash carrier and a slidable sash mounted therein and comprising a swinging section, of an operating shaft journalled on the carrier, a shaft journalled on the sash and engaging the swinging section, a driving train for said last-mentioned shaft mounted on the sash and comprising a pinion, a driving train mounted on the sash carrier and comprising a pinion and means for engaging the sash to shift the same in the sash carrier, an operating gear mounted on the operating shaft, means by which said gear may be shifted into mesh with either of said pinions, a safety latch movable into and out of position to restrain separation of the operating gear from mesh with the pinion of the driving train of the swinging sash section, means operated by said last-mentioned train for moving said safety latch, a second safety latch movable into and out of position to restrain separation of the operating gear from the pinion of the sash shifting train, and means dependent upon sliding movement of the sash for shifting said second safety latch into and out of position restraining separation of the operating gear from the pinion of the sash shifting train.

2. The combination with a sash carrier and a slidable sash mounted therein and comprising a swinging section, of a operating shaft journalled on the carrier, a shaft journalled on the sash and engaging the swinging section, a driving train for said last-mentioned shaft mounted on the sash and comprising a pinion, a driving train mounted on the sash carrier and comprising a pinion and means for engaging the sash to shift the same in the sash carrier, an operating gear mounted upon the operating shaft and axially shiftable thereon into and out of mesh respectively with said two pinions, a threaded connection between the operating shaft and operating gear, means to limit axial movement of the operating gear on the operating shaft due to rotation of the operating shaft relative to the operating gear, and yielding means to restrain axial movement of the operating gear on the operating shaft.

3. Apparatus of the character specified in claim 2 comprising a safety latch movable into and out of position to restrain separation of the operating gear from mesh with the pinion of the driving train of the swinging sash section, means op erated by said last-mentioned train for moving said safety latch, a second safety latch movable into and out of position to restrain Separation of theoperation gear from the pinion of the sash shifting train, and means dependent upon sliding movement of the sash for shifting said second safety latch into and. out of position restraining separation of the operating gear from the pinion of the sash shifting train.

PETER J. FLAMMANG. 

